diff --git a/Directory.Build.props b/Directory.Build.props
index e975914..3bba554 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -9,4 +9,7 @@
   <ItemGroup>
     <AdditionalFiles Include="$(MSBuildThisFileDirectory)stylecop.json" />
   </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="System.IO.Packaging" Version="8.0.1" />
+  </ItemGroup>
 </Project>